Alt St. Johann Snow Forecast - 7 day
Updated 20 March 2026 11:41 PDT
7-Day Snow Forecast for Alt St. Johann
1-week from 20 March.
For Forecast detail, see below.
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Alt St. Johann 7-Day Snow Forecast Highlights
When will there be fresh snow in Alt St. Johann?
| Next Snow Expected | 23 March |
|---|---|
| Next Snow Amount | - |
| Next 48 Hours | - |
| Next 7 Days | 13in |
7-Day Snow Outlook for Alt St. Johann
Snowfall
Snow Line
Max 50°F
Min 25°F
9in New Snow
Snow Line from 5,679ft to resort level (2,953ft).
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
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Alt St. Johann Medium-Range (7-Day) Snow Forecast Detail
Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.
Max 49°F
Min 32°F
Valley temperatures from an overnight low of 32°F to daytime highs around 49°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Fri
20
Snow unlikely
Clear sky first, fair then clear spells, clear sky later.
Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.
Max 45°F
Min 33°F
Valley temperatures from an overnight low of 33°F to daytime highs around 45°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
21
New Snow
Clear sky first, clear spells then cloudy, snow showers at altitude later.
Snow Line from 5,276ft to 3,104ft, with rain below.
Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.
Max 50°F
Min 31°F
Valley temperatures from an overnight low of 31°F to daytime highs around 50°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sun
22
New Snow
Clear spells first, clear sky then light drizzle, clear sky later.
Snow falling to resort level (2,953ft).
Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.
Max 43°F
Min 33°F
Valley temperatures from an overnight low of 33°F to daytime highs around 43°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Mon
23
up to 1in New Snow
Snow showers first, clear spells then cloudy, clear sky later.
Snow Line from 4,872ft to resort level (2,953ft).
Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.
Max 49°F
Min 30°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 30°F and rising to 49°F
Temperature at BaseTemp at Base
Tue
24
Snow unlikely
Cloudy, clear spells, cloudy later.
Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.
Max 46°F
Min 28°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 28°F and rising to 46°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Wed
25
2in to 3in New Snow
Fair first, cloudy then heavy snow, heavy snow showers later.
Snow Line from 5,679ft to resort level (2,953ft).
Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.
Max 29°F
Min 25°F
Below freezing at all levels, with valley temperatures as low as 25°F and not getting above 29°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Thu
26
5in New Snow
Light snow, heavy snow showers, heavy snow later.
Snow falling to resort level (2,953ft).
Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.
This Snow Forecast for Alt St. Johann, Switzerland gives the predicted Snowfall and Freezing Levels for the next week.
The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Alt St. Johann, on any given trail or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.
Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.
Alt St. Johann Snow Forecast updated at 11:41 PDT, next update expected 17:00 PDT.
Snow Forecast near Alt St. Johann
| Ski Area | 48 Hr | 7 Day | Fr | Sa | Su | Mo | Tu | We | Th |
|---|---|---|---|---|---|---|---|---|---|
| Flumserberg | 1in | 17in | |||||||
| Laterns | 1in | 15in | |||||||
| Dunserberg | 1in | 14in | |||||||
| Unteriberg | - | 14in | |||||||
| Flims | 1in | 13in | |||||||
| Wildhaus | 1in | 11in | |||||||
| Gommiswald | - | 11in |
Snow Reliability
The snow reliability at Alt St. Johann is generally good, with average snow depths often reaching between 50 to 150 cm during peak season. For the latest snow conditions and updates, check J2Ski for accurate and timely information.